<?php

include_once "mp3.class.php";

//implementation array indices
$mesMp3[] = new Mp3("3 Y'a de la joie", "Charles Trenet", 3.09);
$mesMp3[] = new Mp3("2 La pluie", "Claude Nougaro", 3.54);
$mesMp3[] = new Mp3("1 Gaston y'a le telefon qui son", "Nino Ferrer", 2.97);

usort($mesMp3, array("Mp3", "compareToTitre"));

foreach ($mesMp3 as $unMp3) {
    echo $unMp3 . "\n";
}
?>